You’ve most likely heard of the rib cage. Everyone has one, but what does the rib cage do, exactly? The rib cage is also known as the thoracic cage, and the primary rib cage function is to protect the ...
BabyCenter on MSN
Rib pain was the worst pregnancy symptom no one told me about
If it feels like your rib cage is literally expanding during pregnancy, that's because it is — and it can hurt.
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